I always recommend a priority list -- you can't get everything. The Roo 23IKSS has introduced an item that did not previously need consideration in a hybrid but which is similar to my #1 item for a popup: Top down -- slide(s) in -- refrigerator access. The IKSS requires the curb (starboard) slide to be out to just to pack/unpack the refrigerator. Or get to the bathroom! :) Or get to the storage spaces toward the back of the trailer.
Just where these appear on your priority list is up to you.
But the over-riding #1 item for 5 people (including two girls and a boy) should be three (3) regular beds (not the couch or dinette). This requirement makes a very short list. And the IKSS ain't on it!
-- Chuck